CN211331651U

CN211331651U - Clamp apparatus

Info

Publication number: CN211331651U
Application number: CN201921684399.4U
Authority: CN
Inventors: 张立辉; 易苏军
Original assignee: Zhuzhou Gear Co Ltd
Current assignee: Zhuzhou Gear Co Ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-08-25
Anticipated expiration: 2029-10-09

Abstract

The utility model relates to a clamp, include: the device comprises a base, a first chip removal channel is arranged in the base, an inlet of the first chip removal channel is formed in the end wall of the base, and an outlet of the first chip removal channel is formed in the side wall of the base; the support piece is internally provided with a second chip removal channel penetrating through two ends of the support piece, one end of the support piece is arranged on the end wall of the base, and the outlet of the second chip removal channel is opposite to and communicated with the inlet of the first chip removal channel; and the positioning piece is arranged at the other end of the supporting piece and is arranged at an interval with the base, one end of the positioning piece, which is far away from the supporting piece, is provided with a positioning end for placing a workpiece to be inserted, the positioning piece is provided with an inner cavity with a chip inlet and a chip removal port, the chip inlet is arranged at the positioning end, and the chip removal port is arranged opposite to and communicated with the inlet of the second chip removal channel.

Description

Clamp apparatus

Technical Field

The utility model relates to a fixing device technical field especially relates to an anchor clamps.

Background

In the manufacturing process of the internal gear ring, the internal gear is usually processed by a gear shaping process, and during gear shaping, the internal gear ring needs to be fixed by a clamp. When the traditional expansion sleeve fixture is used for fixing the inner gear ring, processed waste scraps can be accumulated in a processing area, so that the gear shaping operation must be stopped at regular time and the waste scraps are cleaned, otherwise the waste scraps can interfere with the gear shaping action, and the processing efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a jig that can improve the machining efficiency when performing a gear shaping operation on an inner ring gear or other workpiece to be gear-shaped that is fixed by the jig.

The technical scheme is as follows:

a clamp, comprising: the device comprises a base, wherein a first chip removal channel is arranged inside the base, an inlet of the first chip removal channel is formed in the end wall of the base, and an outlet of the first chip removal channel is formed in the side wall of the base; the support piece is internally provided with a second chip removal channel penetrating through two ends of the support piece, one end of the support piece is arranged on the end wall of the base, and an outlet of the second chip removal channel is opposite to and communicated with an inlet of the first chip removal channel; and the locating element, the locating element set up in the other end on the support piece and with the base interval sets up, the locating element is kept away from the one end of support piece has the location end that is used for supplying to wait that the latch work piece is placed, just the locating element is equipped with the inner chamber that has chip inlet and chip removal mouth, chip inlet sets up in the location end, the chip removal mouth with the import of second chip removal passageway sets up relatively and communicates.

In the clamp, the bottom of the workpiece to be subjected to gear shaping is abutted against the positioning end of the positioning piece so as to realize the positioning of the bottom end of the workpiece to be subjected to gear shaping, when the workpiece to be subjected to gear shaping is subjected to gear shaping operation, a waste chip material enters the inner cavity from the chip inlet of the positioning piece, is discharged into the first chip discharge channel through the second chip discharge channel, and is finally discharged to the outside from the first chip discharge channel. Therefore, the scrap materials processed from the workpiece to be inserted can be discharged from the inner cavity in time, the operation of stopping inserting the teeth is not needed to clean the scrap materials, and the processing is convenient.

The technical solution is further explained below:

in one embodiment, the positioning element is further provided with a chip removal port communicated with the inner cavity, the chip inlet, the chip removal port and the second chip removal channel are sequentially arranged along the arrangement direction of the base and the supporting element, the bottom wall of the inner cavity is obliquely arranged to form a guide structure, and the position of the bottom wall close to the chip removal port is lower than the position far away from the chip removal port.

In one embodiment, the first chip removal channel is a meandering channel.

In one embodiment, the first chip removal channel comprises a first chip removal section communicated with the second chip removal channel and a second chip removal section communicated with the first chip removal section, and the second chip removal section and the first chip removal section are arranged at an included angle.

In one embodiment, the fixture further comprises a clamping assembly, and the clamping assembly is arranged on the base and used for clamping the workpiece to be subjected to tooth insertion.

In one embodiment, the clamping assembly comprises a positioning sleeve and a clamping sleeve, the positioning sleeve is sleeved outside the positioning piece, an installation gap is formed between the positioning sleeve and the positioning piece, the clamping sleeve penetrates through the installation gap and is sleeved outside the positioning piece, and the inner wall of the clamping sleeve is used for abutting against the outer wall of the workpiece to be inserted.

In one embodiment, the clamping sleeve is movably arranged in the mounting gap in a penetrating manner and can move along a preset direction so as to drive the workpiece to be subjected to tooth insertion to be close to the positioning end.

In one embodiment, the clamping sleeve is an elastic member, the inner wall of the clamping sleeve comprises a matching surface used for being abutted against the workpiece to be inserted, the outer wall of the clamping sleeve comprises a pressed surface opposite to the matching surface, the pressed surface inclines towards the matching surface along the preset direction, the inner wall of the positioning sleeve comprises an extrusion surface, the extrusion surface inclines towards the matching surface along the preset direction, the extrusion surface is attached to the pressed surface, and the pressed surface can move along the preset direction relative to the extrusion surface.

In one embodiment, the compression surface and the extrusion surface are both conical surfaces.

In one embodiment, the clamping sleeve is further provided with an avoiding groove penetrating through the matching surface and the compression surface;

or the clamping sleeve is also provided with at least two avoidance grooves penetrating through the matching surface and the compression surface, and the at least two avoidance grooves are arranged at intervals along the circumferential direction of the clamping sleeve;

or the clamping sleeve is further provided with avoiding grooves which penetrate through the matching surface and the compression surface, the number of the avoiding grooves is at least two, and the avoiding grooves are arranged along the circumferential direction of the clamping sleeve at even intervals.

Drawings

Fig. 1 is a schematic view of an assembly structure of a fixture and a workpiece to be inserted with teeth according to an embodiment of the present invention;

fig. 2 is a schematic top view of the clamping sleeve according to an embodiment of the present invention;

fig. 3 is a cross-sectional structural view of the clamping sleeve shown in fig. 2 along a-a.

Description of reference numerals:

10. the fixture comprises a fixture, 20, a workpiece to be inserted, 100, a base, 110, a first chip removal channel, 111, a first chip removal section, 112, a second chip removal section, 200, a supporting piece, 210, a second chip removal channel, 300, a positioning piece, 310, a positioning end, 320, an inner cavity, 321, a bottom wall of the inner cavity, 330, a chip inlet, 340, a chip removal port, 400, a clamping component, 410, a positioning sleeve, 411, an extrusion surface, 420, a clamping sleeve, 421, a matching surface, 422, a compression surface, 423 and an avoidance groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the present invention, the terms "first" and "second" do not denote any particular quantity or order, but are merely used to distinguish names.

As shown in fig. 1, an embodiment of a clamp 10 includes a base 100, a support 200, and a positioning member 300.

Specifically, a first chip discharge passage 110 is arranged inside the base 100, an inlet of the first chip discharge passage 110 is arranged on an end wall of the base 100, and an outlet of the first chip discharge passage 110 is arranged on a side wall of the base 100; a second chip discharge channel 210 penetrating through two ends of the supporting member 200 is arranged inside the supporting member 200, one end of the supporting member 200 is arranged on the end wall of the base 100, and the outlet of the second chip discharge channel 210 is arranged opposite to and communicated with the inlet of the first chip discharge channel 110; the positioning element 300 is disposed at the other end of the supporting element 200 and spaced apart from the base 100, one end of the positioning element 300 away from the supporting element 100 is provided with a positioning end 310 for placing the workpiece 20 to be inserted, the positioning element 300 is provided with an inner cavity 320 having a chip inlet 330 and a chip exhaust 340, the chip inlet 330 is disposed at the positioning end 310, and the chip exhaust 340 is disposed opposite to and communicated with the inlet of the second chip exhaust channel 210.

The end of the positioning element 300 away from the support element 200 is a positioning end 310, the positioning end 310 is annular, the workpiece 20 to be inserted is an inner gear ring, and the bottom of the inner gear ring abuts against the positioning end 310 to position the inner gear ring.

The supporting member 200 may be a hollow positioning column, two ends of the positioning column are respectively abutted to the base 100 and the positioning member 300, two ends of the positioning column are respectively fixedly connected to the base 100 and the positioning member 300 through bolts, one end of the second chip removal channel 210 close to the base 100 is oppositely arranged and communicated with the first chip removal channel 110, and one end of the second chip removal channel 210 close to the positioning member 300 is oppositely arranged and communicated with the chip removal port.

Further, the number of the supporting members 200 may be multiple, the supporting members 200 are disposed between the base 100 and the positioning member 300 at intervals, each supporting member 200 is provided with a second chip removal channel 210, each second chip removal channel 210 is communicated with the inner cavity 320, the number of the first chip removal channels 110 on the base 100 is multiple, and the first chip removal channels 110 are communicated with the second chip removal channels 210 in a one-to-one correspondence manner. Thus, the discharge rate of the waste scraps can be increased.

In the above-mentioned clamp 10, the bottom of the workpiece 20 to be cogged is used for abutting against the positioning end 310 of the positioning member 300, so as to position the bottom end of the workpiece 20 to be cogged, when the workpiece 20 to be cogged is cogged, the waste chips enter the inner cavity 320 from the chip inlet 330 of the positioning member 300, then enter the first chip removal channel 110 through the second chip removal channel 210, and finally are discharged to the outside from the first chip removal channel 110. Therefore, the scrap processed from the workpiece 20 to be inserted can be discharged from the inner cavity 320 in time, the operation of stopping inserting the teeth is not needed to clean the scrap, and the processing is convenient.

In one embodiment, as shown in FIG. 1, the inlet 330, the exhaust 340, the second exhaust channel 210 and the first exhaust channel 110 are arranged in sequence along the direction of gravity, such that the waste entering from the inlet 330 can be exhausted to the environment by gravity through the internal cavity 320, the exhaust 340, the second exhaust channel 210 and the first exhaust channel 110 in sequence.

Of course, in other embodiments, the exhaust port 330, the exhaust port 340, the second exhaust passageway 210 and the first exhaust passageway 110 may be interconnected, and the exhaust pump may be disposed at the outlet of the first exhaust passageway 110, and the exhaust pump may be configured to pump the exhaust entering through the exhaust port 330 out of the clamp 10.

In one embodiment, the first chip channel 110 is a serpentine channel. Therefore, after the waste chips enter the first chip-discharging channel 110, the movement speed of the waste chips is reduced at the bending part, which is beneficial for the waste chips to be smoothly discharged to the outside, and avoids the situation that the surrounding environment is polluted due to the overlarge speed of the waste chips discharged from the first chip-discharging channel 110.

Specifically, the chip inlet 330, the inner cavity 320, the chip exhaust 340, the second chip exhaust channel 210 and the first chip exhaust channel 110 are sequentially arranged along the gravity direction, the first chip exhaust channel 110 comprises a first chip exhaust section 111 communicated with the second chip exhaust channel 210 and a second chip exhaust section 112 communicated with the first chip exhaust section 111, the second chip exhaust section 112 and the first chip exhaust section 111 are arranged at an included angle, and the second chip exhaust section 112 and the first chip exhaust section 111 are in arc transition. After the waste material passes through the inlet 330, the cavity 320, the exhaust 340, and the second chip exhaust channel 210 by gravity and enters the first chip exhaust channel 110, the waste material will have a reduced rate of movement at the transition between the first chip exhaust segment 111 and the second chip exhaust segment 112.

More specifically, the first chip ejection segment 111 and the second chip ejection channel 210 both extend along the gravity direction, and the first chip ejection segment 111 and the second chip ejection segment 112 are arranged at an obtuse angle. The first chip removal section 111 and the second chip removal channel 210 both extend along the gravity direction, which is beneficial for the quick discharge of the waste chips in the inner cavity 320, and the first chip removal section 111 and the second chip removal section 112 are arranged at an obtuse angle, which is beneficial for the smooth discharge of the waste chips from the second chip removal section 112 to the outside.

Further, bottom wall 321 of inner cavity 320 is sloped to form a guide structure, and bottom wall 321 is positioned closer to exhaust port 340 than farther from exhaust port 340. Thus, when the waste material falls into the inner cavity 320, the bottom wall 321 of the inner cavity 320 guides the waste material to the exhaust port 340, thereby preventing the waste material from accumulating in the inner cavity 320.

It should be noted that during the gear shaping process, the cutting oil is often injected into the inner wall of the workpiece 20 to be shaped, and the waste material flows along the bottom wall 321 of the inner cavity 320 to the exhaust port 340 under the washing of the cutting oil.

As shown in fig. 1, in one embodiment, the fixture 10 further includes a clamping assembly 400, and the clamping assembly 400 is disposed on the base 100 and is used for clamping the workpiece 20 to be toothed, so that the workpiece 20 to be toothed is fixed on the fixture 10.

Specifically, the clamping assembly 400 includes a positioning sleeve 410 and a clamping sleeve 420, the positioning sleeve 410 is sleeved outside the positioning member 300, an installation gap is formed between the positioning sleeve 410 and the positioning member 300, the clamping sleeve 420 penetrates through the installation gap and is sleeved outside the positioning member 300, and an inner wall of the clamping sleeve 420 is used for abutting against an outer wall of the workpiece 20 to be inserted.

The positioning sleeve 410 is fixed on the base 100 through a bolt, the clamping sleeve 420 is positioned under the combined action of the positioning sleeve 410 and the positioning piece 300, and the inner wall of the clamping sleeve 420 is used for abutting against the outer wall of the workpiece 20 to be cogged so as to fix the workpiece 20 to be cogged.

In one embodiment, the clamping sleeve 420 is movably disposed through the mounting gap and can move along a predetermined direction to drive the workpiece 20 to be toothed to approach the positioning end 310. So, after waiting to insert the outer wall of tooth work piece 20 and the inner wall butt of centre gripping cover 420, centre gripping cover 420 moves along predetermineeing the direction, can drive and wait to insert tooth work piece 20 and be close to the location end 310 of setting element 300 to make and wait to insert tooth work piece 20 and location end 310 butt, realize waiting to insert tooth work piece 20 and the location of location end 310, improve the installation accuracy.

Specifically, in the present embodiment, the preset direction is a vertically downward direction.

Further, the clamping sleeve 420 is an elastic member, the inner wall of the clamping sleeve 420 includes a matching surface 421 for abutting against the workpiece 20 to be inserted, the outer wall of the clamping sleeve 420 includes a pressed surface 422 opposite to the matching surface 421, the pressed surface 422 inclines towards the matching surface 421 along a preset direction, the inner wall of the positioning sleeve 410 includes an extrusion surface 411, the extrusion surface 411 inclines towards the matching surface 421 along the preset direction, the extrusion surface 411 is attached to the pressed surface 422, and the pressed surface 422 can move along the preset direction relative to the extrusion surface 411.

Thus, when the clamping sleeve 420 is driven by hydraulic pressure or other force to move along the preset direction (downward) relative to the positioning sleeve 410, the pressed surface 422 slides along the extrusion surface 411 and simultaneously shrinks inward, so that the matching surface 421 and the outer wall of the workpiece 20 to be cogged are matched more and more tightly, clamping of the workpiece 20 to be cogged is realized, and when the clamping sleeve 420 moves along the preset direction (downward), the workpiece 20 to be cogged is simultaneously driven to be close to the positioning part 300, so that the workpiece 20 to be cogged is tightly attached to the positioning end 310.

Alternatively, the clamping sleeve 420 is made of an elastic material such as elastic steel, and the pressure receiving surface 422 and the pressing surface 411 are both tapered surfaces.

As shown in fig. 1 to 3, in one embodiment, the clamping sleeve 420 is further provided with an avoiding groove 423 penetrating the matching surface 421 and the compression surface 422, and the avoiding groove 423 is used for providing a contraction space for the clamping sleeve 420, so that the clamping sleeve 420 can contract and apply pressure to the workpiece 20 to be inserted.

Further, at least two avoiding grooves 423 are provided, and the at least two avoiding grooves 423 are arranged at intervals along the circumferential direction of the clamping sleeve 420.

Further, at least two escape grooves 423 are uniformly spaced along a circumferential direction of the clamping sleeve 420. Therefore, when the clamping sleeve 420 contracts, the force borne by the clamping sleeve 420 in the circumferential direction is balanced, and the problem of deformation of the workpiece 20 to be inserted can be effectively solved.

Specifically, in the present embodiment, the number of the avoiding grooves 423 is 12, and the avoiding groove 423 is long.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A clamp, comprising:

the device comprises a base, wherein a first chip removal channel is arranged inside the base, an inlet of the first chip removal channel is formed in the end wall of the base, and an outlet of the first chip removal channel is formed in the side wall of the base;

the support piece is internally provided with a second chip removal channel penetrating through two ends of the support piece, one end of the support piece is arranged on the end wall of the base, and an outlet of the second chip removal channel is opposite to and communicated with an inlet of the first chip removal channel; and

the setting element, the setting element set up in support piece's the other end and with the base interval sets up, the setting element is kept away from support piece's one end has the location end that is used for supplying to wait that the latch work piece is placed, just the setting element is equipped with the inner chamber that has chip inlet and chip removal mouth, the chip inlet is seted up in the location end, the chip removal mouth with the import of second chip removal passageway sets up relatively and communicates.

2. The clamp according to claim 1, wherein said chip inlet, said chip exhaust port and said second chip removal channel are sequentially arranged along the arrangement direction of said base and said supporting member, the bottom wall of said inner cavity is obliquely arranged to form a guiding structure, and the position of said bottom wall near said chip exhaust port is lower than the position far away from said chip exhaust port.

3. The clip of claim 1, wherein the first debris excluding passage is a tortuous passage.

4. The clamp of claim 3, wherein said first chip removal channel includes a first chip removal segment in communication with said second chip removal channel and a second chip removal segment in communication with said first chip removal segment, said second chip removal segment disposed at an included angle with respect to said first chip removal segment.

5. The fixture according to any one of claims 1 to 4, further comprising a clamping assembly disposed on the base for clamping the workpiece to be cogged.

6. The fixture according to claim 5, wherein the clamping assembly comprises a positioning sleeve and a clamping sleeve, the positioning sleeve is sleeved outside the positioning member, an installation gap is formed between the positioning sleeve and the positioning member, the clamping sleeve is penetrated through the installation gap and sleeved outside the positioning member, and the inner wall of the clamping sleeve is used for abutting against the outer wall of the workpiece to be inserted.

7. The fixture of claim 6, wherein the clamping sleeve is movably disposed through the mounting gap and movable in a predetermined direction to drive the workpiece to be serrated proximate to the positioning end.

8. The clamp according to claim 7, wherein the clamping sleeve is an elastic member, the inner wall of the clamping sleeve includes a fitting surface for abutting against the workpiece to be inserted, the outer wall of the clamping sleeve includes a pressed surface opposite to the fitting surface, the pressed surface is inclined toward the fitting surface along the preset direction, the inner wall of the positioning sleeve includes an extrusion surface, the extrusion surface is inclined toward the fitting surface along the preset direction, the extrusion surface is attached to the pressed surface, and the pressed surface can move along the preset direction relative to the extrusion surface.

9. The clamp of claim 8, wherein the compression surface and the compression surface are both tapered surfaces.

10. The clamp of claim 8, wherein the clamping sleeve further comprises an escape slot extending through the mating surface and the compression surface.

11. The clamp of claim 10, wherein the number of the avoiding grooves is at least two, and at least two of the avoiding grooves are arranged at intervals along a circumferential direction of the clamping sleeve.

12. The clamp of claim 11, wherein at least two of the evasion grooves are evenly spaced along a circumference of the clamping sleeve.